Designed specifically for the 2019–24 Chevy Silverado 1500 Trail Boss and GMC Sierra 1500 AT4 4WD, this lift kit is ideal for owners looking to gain additional ride height and achieve proper clearance for full-size 33/12.50R18 or 33/12.50R20 tires. With these models already equipped with a factory 2″ lift, Fabtech’s 1.5″ Upper Control Arm lift kit raises the vehicle to the equivalent height of a standard model running a 3.5″ lift—allowing perfect fitment of 33″ tall tires without compromising handling or suspension function.
The lift is achieved through a combination of an aluminum top spacer and a small preload spacer placed beneath the factory Coilover coil. This configuration positions the Coilover correctly to add height without causing coil bind or overstretching the suspension—critical factors in preventing premature wear or component damage.
Fabtech’s tubular Upper Control Arms with heavy-duty ball joints correct the suspension geometry at the new ride height, ensuring proper alignment capability and improved handling. Thanks to GM’s updated 2019+ suspension design, no differential drop brackets are required for proper CV axle operation, simplifying installation.
Rear lift is provided by 1″ blocks and U-bolts, although some owners may choose to omit the rear block if they prefer a level vehicle stance. This system also includes Stealth rear shocks—monotube shocks featuring Nitrocarb piston rods for maximum corrosion resistance and durability. They deliver a smooth highway ride with strong off-road damping performance.
